@article{fdi:010061834, title = {{S}oil {B}radyrhizobium population response to invasion of a natural {Q}uercus suber forest by the introduced nitrogen-fixing tree {A}cacia mearnsii in {E}l {K}ala {N}ational {P}ark, {A}lgeria}, author = {{B}oudiaf, {I}. and {L}e {R}oux, {C}. and {B}audoin, {E}z{\'e}kiel and {G}aliana, {A}. and {B}eddiar, {A}. and {P}rin, {Y}. and {D}uponnois, {R}obin}, editor = {}, language = {{ENG}}, abstract = {{W}e analyzed the diversity and identity of the rhizobial populations nodulating an invasive {A}ustralian legume tree {A}cacia mearnsii in a natural {Q}uercus suber forest in the {E}l {K}ala {N}ational {P}ark, {A}lgeria. {S}oils from three different forest plots corresponding to non invaded original {Q}. suber stand, partially invaded by {A}. mearnsii, and totally invaded (monodominant) {A}. mearnsii stand were used to trap nodulating bacteria with the same tree species. {S}ymbiotic nitrogen-fixing bacteria were isolated from root nodules and characterized by sequencing of the internal transcribed spacer region, then submitted to phylogenetic analyses. {A} total of 67 isolates was obtained, representing the 3 different forest plots, all renodulating {A}. mearnsii in monoxenic conditions. {P}hylogenetic analyses showed that all isolates belong to different {B}radyrhizobium lineages, according to each of the three locations with little intermixing between forest plots. {T}hese results illustrate the adaptation of nodulating {B}radyrhizobium populations to the new soil conditions induced by invasion. {T}his symbiotic adaptability is presumed to be a key factor of the invasive character of this tree species.}, keywords = {{M}imosoideae ; {N}odulation ; {E}xotic ; {C}ork oak ; {R}hizobia ; {I}nvasivity ; {N}orth {A}frica ; {ALGERIE}}, booktitle = {}, journal = {{S}oil {B}iology and {B}iochemistry}, volume = {70}, numero = {}, pages = {162--165}, ISSN = {0038-0717}, year = {2014}, DOI = {10.1016/j.soilbio.2013.12.030}, URL = {https://www.documentation.ird.fr/hor/fdi:010061834}, }